We have put together a list of words that are similar to ACCESSION.

14 Alternative Words Similar to accession

1 Addition Noun      Synonym Words Like Addition
2 Assenting Noun      Synonym Words Like Assenting
3 Entree Noun      Synonym Words Like Entree
4 Access Noun      Synonym Words Like Access
5 Admittance Noun      Synonym Words Like Admittance
6 Acquisition Noun      Synonym Words Like Acquisition
7 Agreement Noun      Synonym Words Like Agreement
8 Attainment Noun      Synonym Words Like Attainment
9 Growth Noun      Synonym Words Like Growth
10 Increase Noun      Synonym Words Like Increase
11 Increment Noun      Synonym Words Like Increment
12 Right Noun      Synonym Words Like Right
13 Enter Verb      Synonym Words Like Enter
14 Record Verb      Synonym Words Like Record

5 examples of accession

1 a king's accession to a confederacy
2 an accession of wealth or territory
3 the accession of the house of Stuart
4 he was a new addition to the staff
5 assenting to the Congressional determination

10 definitions of accession

1 A coming to; the act of acceding and becoming joined.
2 Increase by something added; that which is added; augmentation from without.
3 A mode of acquiring property, by which the owner of a corporeal substance which receives an addition by growth, or by labor, has a right to the part or thing added, or the improvement (provided the thing is not changed into a different species). Thus, the owner of a cow becomes the owner of her calf.
4 The act by which one power becomes party to engagements already in force between other powers.
5 The act of coming to or reaching a throne, an office, or dignity; ; -- applied especially to the epoch of a new dynasty.
6 The invasion, approach, or commencement of a disease; a fit or paroxysm.
7 something added to what you already have
8 the act of attaining or gaining access to a new office or right or position (especially the throne)
9 agreeing with or consenting to (often unwillingly)
10 the right to enter
We get our data from many different dictionaries across the web:
Wordnik, Wiktionary, Century, American Heritage, Gcide